### --- title: " Lab Report 2 - z5016113" output: html_notebook i--- #1. Gastropod abundance vs. height on the shore ```{r} Gastropods <- read.csv(file = "MaroubraZones.csv", header = TRUE) library(ggplot2, dplyr) ``` ```{r} Gastropods$Zone <- factor(Gastropods$Zone, levels = c("Low", "Mid", "High")) ``` ```{r} Cellana <- filter(Gastropods, Species == "Cellana") ------> This line is causing the error ``` ```{r} ggplot(Cellana, aes(Zone, Abundance)) + geom_boxplot() ``` ###